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The exit velocity in the nozzle increases as per __________

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in Fluid Mechanics by (118k points)
The exit velocity in the nozzle increases as per __________

(a) Stagnation point

(b) Continuity equation

(c) Prandtl Number

(d) Newton’s law

I have been asked this question during an interview for a job.

My question comes from Area Velocity Relationship for Compressible Flow topic in chapter Compressible Flow of Fluid Mechanics

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Correct choice is (b) Continuity equation

Explanation: In the nozzle, the exit velocity of the fluid increases as per the continuity equation. Continuity equation is given as Av= constant as per the Bernoulli’s equation. It is essential for an incompressible flow.

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